VDB-99774 · CVE-2013-6662 · GCVE-0-2013-6662

Google Chrome TLS Session Cache Certificate certificate validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9	$25k-$100k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Google Chrome. This issue affects some unknown processing of the component TLS Session Cache. The manipulation as part of Certificate results in certificate validation. This vulnerability is cataloged as CVE-2013-6662. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Google Chrome (Web Browser) (the affected version unknown). Affected is an unknown part of the component TLS Session Cache. The manipulation as part of a Certificate leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Google Chrome caches TLS sessions before certificate validation occurs.

The bug was discovered 11/05/2013. The weakness was shared 04/13/2017 (Website). The advisory is available at bugs.chromium.org. This vulnerability is traded as CVE-2013-6662 since 11/05/2013. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $25k-$100k at the moment (estimation calculated on 02/20/2026). It is expected to see the exploit prices for this product increasing in the near future.This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1255 days. During that time the estimated underground price was around $25k-$100k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Web Browser

Vendor

Google

Name

Chrome

License

free

Website

Vendor: https://www.google.com/
Product: https://www.google.com/chrome/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/05/2013 🔍
11/05/2013 +0 days 🔍
04/13/2017 +1255 days 🔍
04/13/2017 +0 days 🔍
04/14/2017 +1 days 🔍
02/20/2026 +3234 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: bugs.chromium.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-6662 (🔍)
GCVE (CVE): GCVE-0-2013-6662
GCVE (VulDB): GCVE-100-99774
OSVDB: - CVE-2013-6662 - Google - Chrome - Man-in-the-Middle Issue

Entryinfo

Created: 04/14/2017 10:51
Updated: 02/20/2026 23:56
Changes: 04/14/2017 10:51 (53), 08/30/2020 09:42 (9), 02/20/2026 23:56 (16)
Complete: 🔍
Cache ID: 216::103